The calculated distance (air line) between Cologno al Serio and Castelli Calepio is approximately 9 miles respectively 14 kilometers.
By car or train, the actual journey to Castelli Calepio is certainly longer, as only the direct route (as the crow flies) between Cologno al Serio and Castelli Calepio has been calculated here.
Air line (approximately)
14 kilometers
8 nautical miles